Collapsible box



W. E. WALMSLEY.

COLLAPSIBLE BOX.

APPLICATION FILED FEB. 25, 1921.

Patented Apr. 25, 1922.

4 1 A m 4 WM 8 9 mu 11 \1 E m 7 7 m 7 (1 4 1 44 A E 6 L/ V1 1 1 m m 5 m A WILLIAM EDWARD WALMSLEY, 0F LIVERPOOL, ENGLAND.

COLLAPSIBLE BOX,

Application flled lebruary 25, 1921. Serial No. 447,727."

To all whom it may concern:

Be it known. that 1, WILLIAM EDWARD WALMSLEY, a subject of the King of Great Britain, residing at Liverpool, in the county of Lancaster, England, have invented certain new and useful Improvements in Collapsible Boxes, of which the following is a specification.

This invention relates to collapsible boxes specially designed for holding all kinds of granular, pulveru'lent or comminuted substances, though they may be used for holding other substances as well, and the object of the invention is to providela box of cardboard or like material in which the retention and preservation of such substances is secured in a powder-tight manner without leakage, and without of necessity,.using any of the well known means used in cardboard box making for fastening the openable ends, such as wire stitching, stapling, riveting, gluing or the like. The box forms a closed powder-tight packet in which substances may be packed for sale, but the box also provides means whereby it may be used by the consumer for sprinkling or sha'king out the contents as and when required. 3

My improved box is made either from a single blank, of cardboard or other like thin material, or from two or more blanks fastened together so as to form a single blank. The said blank is so shaped, and so scored or creased that its flaps may be folded over upon one another, so as to lock themselves together in the form of a box having recessed or countersunk ends, and which when thus erected will hold powdered substances and granular substances securely without shaking out during transit or storage and without of necessity, using an adhesive or any of the well known mechanical fastening devices commonly used in box making for sealing the openable ends.

The invention consists in cutting and' creasing o1; scoring the end flaps of the ordinary box known in the trade as skillets, cartons or contalners in such a manner that they look themselves together when folded over in position, and make the packet or box so secure that the ends cannot be pushed in or out without damaging the material of Which it is made.

The invention will be understood from the following description, reference being had to the accompanying drawings, in which Figure 1 is a plan View 0 the blank for the box body;

formed from the blank shown in Figure 1, showing the box set up closed at one end and partly closed at the other, and with a portion cut away at the side; and Figure 3 is a similar view showing'the bog set up and completely closed at both en s. v

Referring to these drawings, the blank (Figure 1) is of rectangular shape creased transversely at suitable intervals 1, 2, 3, 4 to form sections to adapt it to be folded, and produce the four main outer walls 5, 6, 7, 8 of the box body, and a narrow lap or pasting margin 9 which latter when the box is formed up, is-secured by paste or 5. The two ends of each of the four sec- Figure 2. is a perspective view of a box Specification of Letters Patent. Patented Apr. 25-, 1922. v

tions 5, 6, 7, 8 have flaps made integral therewith and extending from each extremity to form the ends' of the box. The back flap 10 at both ends of the back seotion'of the box body is made rather larger than theopen end of the box body, on every one of the four sides of it, and it is scored or creased. on lines which correspond with the dimen- .sions of the open ends, thus forming-four wings 11, and the corners 12, are cut away.

This allows the flap so scored or creased (and cut) tobent at its junction 13 with the body 5 of the blank and be pushed into the open end of the box body to the same depth as these wings,'thus fo ming'a recessed or countersunk end, with outer edgesof the wings standing up flush with the extremities of the box sides as shown in Figure 2.

The two side fiaps 14 (at bothends of the side sections 6, 8) which are shorter are scored or creased at one place parallel with the hinge 0r score line 15 at their junction with the'body of the blank. These flaps 14 scored or creased, in a similar manner to those of the back flaps but not quite so deep. This front flap 16 is bent inwards at its hinge or junction 19 with body and is pushed down onto the wings or flanges 11 that have been previously pushed into position, the outer edges of its wings17, 18 standing up flush with the extremities of the box body, as shown in figure 3. i

When the body of the blank has been set up to form the box body, the back flap 10 at one end isfolded inwards and pushed into the end of the box the wings 11 being thereby caused to stand up with their outer edges coincident with the extremities of the box body, thus forming a recessed or countersunk end. The two side flaps 14 at this same end are then folded inwards upon the back flap 10 and over two of its wings or flanges 11, thussealing the end at the place where two of the wings or flanges 11 of the countersunk back flap'lO rest against the sides of the box body. The front flap 16 at this same end isnext folded inwards so as to lie upon the flaps 10, 14 that have as aforesaid been previously pressed inwards, and this folding inwards of the said front flap v16 causes it to fold over or against the other two wings or flanges 11 of the back flap. This action seals-the end at the place where another wing 11 of the countersunk back flap l0 rests against a side of the box body. The resu'ltis a box with a closed end of a double thickness in which the closure of the ends is such as to render them impervious or almost being a box which will retain-fine or comminuted or granular substances without'leakage or. substantially so.

If desired the side flaps 14 aforesaid may be made just long enough to butt up against one another at their meeting ends when folded inwards, but they should not many case overlap at their meeting ends.

If it be desired to use the box as a dredgerf to sprinkle or shake out small quantities of the contents, the box is perforated at one art, which'perforations are normally closed by a flap or a piece of paperpasted over them. I

hen therefore it is desired to usethe box as a sprinkler, the flap or piece is torn off or such flap or piece perforated by some pointed instrument so as to outlet passageor spout.

I declare that what I claim is v 1. A collapsible box having a body portion with back, front-and sides, a flap extending from both extremities of the said with back, front and sides; flaps extending from the ends of the back portion and made larger than the open ends of thebox body so that the said flaps when folded inwards are countersunk into the ends'of the box body with the margins standing up and lying against extremities of the four walls of the body on the inside so as to form flanges, flaps extending-from the ends of'the body side portions and made so as to fold inwards upon the back flap and over two of its wings or flanges; and flaps extending from the ends of the body front portion and made so as to fold inwards and lie'upon the previously folded flaps, and be folded over or against the other two wings or flanges of the back flaps.

3. A collapsible box having a body portion with back, front'and sides; a flap extending from eachend of the back portion but made larger than the open end of the body on every one of its four edges and creased onlines which correspond with the dimensions of the openend thus forming four wings whichallows the flap to bend at its junction with the body and be pushed into the open end to the same depth as these four wings; a flap extending from-each end of the body side portions and so creased that they can be folded inwards over two of the wings of the back flap and a flap extendingfrom the front portion of the body and-so made with wings as to hold over or against-the other two wings of the back flap.

In witness whereof, I havehereunto signed my name this 5th day of February, 1921, in

Witnesses:

G. C'- DYMOND, T JOHN MCLACHLAN.

form an 

